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2 years ago

14

Is the process of bananas ripening a chemical change or a physical change? explain?

1 answer:

Rom4ik [11]2 years ago

7 0

Bananas ripening is a chemical change. First, there is a change in color of peel from green to yellow then to brown. Second, there is a change in taste. You will notice a change in taste as the bananas ripen. They become sweeter and sweeter as they begin to ripen.

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What is the mass of 0.60 moles of Al

KIM [24]

16 g. The mass of 0.60 mol Al is 16 g.

Molar mass of Al = 26.98 g/mol

Mass of Al = 0.60 mol Al x (26.98 g Al/1 mol Al) = 16 g Al

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3 years ago

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2. When paleontologists study fossils, which is true of the fossil record that they find?

juin [17]

Answer:

Explanation:

d

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3 years ago

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What volume of 3.00 M HCl will form a solution with an acidic pH when mixed with 100 mL of 3.00 M NaOH

Maksim231197 [3]

<u>Answer:</u> The volume of acid should be less than 100 mL for a solution to have acidic pH

<u>Explanation:</u>

To calculate the volume of acid needed to neutralize, we use the equation given by neutralization reaction:

$n_1M_1V_1=n_2M_2V_2$

where,

$n_1,M_1\text{ and }V_1$ are the n-factor, molarity and volume of acid which is HCl

$n_2,M_2\text{ and }V_2$ are the n-factor, molarity and volume of base which is NaOH

We are given:

$n_1=1\\M_1=3.00M\\V_1=?mL\\n_2=1\\M_2=3.00M\\V_2=100mL$

Putting values in above equation, we get:

$1\times 3.00\times V_1=1\times 3.00\times 100\\\\V_1=\frac{1\times 3.00\times 100}{1\times 3.00}=100mL$

For a solution to be acidic in nature, the pH should be less than the volume of acid needed to neutralize.

Hence, the volume of acid should be less than 100 mL for a solution to have acidic pH

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3 years ago

As you move to a higher elevation (e.g. in the mountains), the air pressure drops significantly. In turn,

soldi70 [24.7K]

The answer is C ( The evaporation rate of water increases at all temperatures causing an increase in volume.)

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2 years ago

Which statement correctly describes soil horizon C? A. It is considered the subsoil layer. B. It is the horizon with the smalles

kirill [66]

Answer:

i believe that the answer is c

Explanation:

I think its c because because its used as a bed rock layer

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2 years ago